共 15 条
Fiber Bragg gratings with enhanced thermal stability by residual stress relaxation
被引:90
作者:
Li, Yuhua
[1
,2
]
Yang, Minwei
[1
]
Wang, D. N.
[1
]
Lu, J.
[3
]
Sun, T.
[4
]
Grattan, K. T. V.
[4
]
机构:
[1] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[3] Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China
[4] City Univ London, Sch Mat Sci & Engn, London EC1V 0HB, England
关键词:
CHEMICAL-COMPOSITION GRATINGS;
OPTICAL-FIBERS;
ANNEALING PROPERTIES;
LASER-PULSES;
WRITTEN;
D O I:
10.1364/OE.17.019785
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
Fiber Bragg gratings with greatly enhanced thermal stability have been fabricated by the use of femtosecond laser pulse irradiation on optical fibers with relaxed residual stress, through using high temperature annealing treatment. The grating reflectivity and resonant wavelength can be maintained for periods up to 20 hours using isothermal measurements and temperatures up to 1200 degrees C. No hysteresis was observed in the wavelength response when the gratings were annealed and the temperature cycled repeatedly between room temperature and 1200 degrees C. (C) 2009 Optical Society of America
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页码:19785 / 19790
页数:6
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